If I wanted to export a tsv file using groHMM called transcripts rather than knownGenes, how would I change that code from the tutorial. Would the following work?

d_rpkm <- data.frame(rpkm(d,width(txFinal),normalized.lib.sizes=TRUE))
transcript_rpkm <- data.frame(txFinal, d_rpkm)
head(transcript_rpkm)

Thanks a million!!